How do I use MRO in Python?
MRO stands for Method Resolution Order. It's the order in which Python looks for a method in a hierarchy of classes. You can use the mro()
method or the __mro__
attribute to see the MRO of a class.
Can you show me an example of MRO in action?
Sure! Let's say you have a class A
, a class B
that inherits from A
, and a class C
that also inherits from A
. If you create a class D
that inherits from both B
and C
, you can check the MRO of D
using D.mro()
.
What will the output of D.mro() be?
The output will be a list showing the order in which Python will search for methods: [D, B, C, A, object]
.
What happens if I change the order of inheritance?
If you change the order of inheritance, the MRO will also change. Python uses the C3 linearization algorithm to determine the MRO, which ensures a consistent order.
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